CN102540121B - Magnetic resonance coil device - Google Patents
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- CN102540121B CN102540121B CN201110416551.2A CN201110416551A CN102540121B CN 102540121 B CN102540121 B CN 102540121B CN 201110416551 A CN201110416551 A CN 201110416551A CN 102540121 B CN102540121 B CN 102540121B
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- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 8
- 239000011159 matrix material Substances 0.000 description 9
- 239000004020 conductor Substances 0.000 description 8
- 230000008054 signal transmission Effects 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- 210000001015 abdomen Anatomy 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 210000000746 body region Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 210000003127 knee Anatomy 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 1
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- 238000004088 simulation Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
- G01R33/3692—Electrical details, e.g. matching or coupling of the coil to the receiver involving signal transmission without using electrically conductive connections, e.g. wireless communication or optical communication of the MR signal or an auxiliary signal other than the MR signal
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Abstract
The present invention relates to a kind of magnetic resonance coil device for receiving magnetic resonance signals, there is reception antenna unit (17), signal processing unit (19), high frequency unit (24) and for by the magnetic resonance signal of reception and/or data wireless be transferred to the transmitting antenna unit (25) of data receiver unit (23), wherein said magnetic resonance coil device (10) has at least one unlapped region (28) substantially, and wherein said transmitting antenna unit (25) be disposed in described at least one substantially in unlapped region (28).
Description
Technical field
The present invention relates to a kind of magnetic resonance coil device for receiving magnetic resonance signals, there is reception antennaUnit, signal processing unit, high frequency unit and for by the magnetic resonance signal receiving and/or data withoutBe transferred to the transmitting antenna unit of data receiver unit line.
Background technology
Magnetic resonance coil device for receiving magnetic resonance signals is open by US7592813B2. Magnetic altogetherThe coil device that shakes has at least one reception antenna unit, signal processing unit, high frequency unit and at leastOne for being wirelessly transferred to the magnetic resonance signal of reception the transmitting antenna unit of data receiver unit.
Summary of the invention
Especially, the technical problem to be solved in the present invention is, a kind of interference-free is provided, wirelessly entersThe magnetic resonance coil device of row signal and/or transfer of data.
The present invention relates to a kind of magnetic resonance coil device for receiving magnetic resonance signals, there is reception antennaUnit, signal processing unit, high frequency unit and for by the magnetic resonance signal receiving and/or data withoutBe transferred to the transmitting antenna unit of data receiver unit line.
Suggestion magnetic resonance coil device has at least one unlapped region, wherein transmitting antenna substantiallyUnit is disposed in this at least one substantially in unlapped region. Magnetic resonance coil device especially shouldBe understood to following device: this device is preferably constructed to TMR's coil device, andPatient's selected body part and/or body region (such as chest region and/or abdomen area etc.)Anatomical structure on moulding, be wherein received in the selected health of patient by TMR's coil deviceThe magnetic resonance signal producing in position and/or body region. For this reason particularly preferably, at least one receptionAntenna element has at least one reception antenna for receiving magnetic resonance signals and/or receiving antenna arrayRow. In this connection, unlapped region is especially understood to the following region of magnetic resonance coil device:This region is not covered by patient and/or other object during magnetic resonance measurement, makes from transmitting antennaUnit is clog-free to the data signal path of data receiver unit transmitted signal and/or data. DataReceiving element is preferably disposed in outside magnetic resonance coil device, and is preferably filled by magnetic resonance at thisPut and comprise. In addition, unlapped region is especially understood to the following of magnetic resonance coil device substantiallyRegion: this region has low especially covering probability, for example, covered by patient's palm and/or armProbability. Substantially unlapped region for example can by body matrix magnetic resonance coil device around patientShoulder region form. The region with the magnetic resonance coil device of high covering probability be for example aroundThe region of the magnetic resonance coil device that patient's abdomen area is arranged, because this region is in the magnetic resonance measurement phaseBetween be generally used for arm and/or the palm of patient.
By according to the embodiment of the present invention, a kind of magnetic resonance coil device preferably can be provided, itsAllow essentially no carrying out intrusively for utilizing magnetic resonance coil device institute to the transmission of data receiver unitThe transmission operation of the measurement data gathering. In addition, during magnetic resonance measurement, can not rely on use at thisIn the cable length of transfer of data and/or do not rely at the magnetic resonance coil device for taking patientOrientation magnetic resonant coil arrangement is carried out in position in shooting area. Preferably, unlapped region substantiallyAnd position and/or the layout of the transmitting antenna unit in magnetic resonance coil device depend on that magnetic altogether thusShake structure and/or the shape of coil device, thus in body matrix magnetic resonance coil device transmitting antennaThe layout of unit can with the cloth of the transmitting antenna unit in shank and/or knee magnetic resonance coil devicePut difference.
In addition suggestion, unlapped region is formed by fringe region substantially. At this preferably, Neng GoufangOnly the region that comprises transmitting antenna unit of magnetic resonance coil device is capped, and like this by sending skyLine unit interference-free maintains Wireless Data Transmission.
If unlapped region is at least in part by sleeping for being supported on patient during magnetic resonance measurementSupporting surface on couch forms, and preferably can prevent owing to being arranged in transmitting antenna unit and data receiverThe less desirable impact on transfer of data that objects interfered between unit causes. At this particularly preferably,Data receiver unit is disposed in patient's bed.
According to preferred expansion of the present invention, transmitting antenna unit be embodied as for send digital data and/ or signal. Thus, can make the noise signal component on data waiting for transmission and/or signal minimize,And the less desirable decay of anti-like this stop signal and/or weaken, described decay and/or weaken as in simulationWhat in signal, can occur due to large noise signal component is such. Data signal especially should be understoodSignal for following: it can be according to the temporal continually varying analog signal of having described physical parameterBy analog signal figure conversion and sampling are formed, and the value deposit of definition and classification in additionAnd in time series, only define in the specific periodically moment, or there is the change in signal valueChange.
In addition suggestion, transmitting antenna unit and signal processing unit and/or high frequency unit 0.3cm at least apartDistance arrange. If transmitting antenna unit has multiple transmitting antenna elements, these transmitting antenna unitsPart is arranged at a distance of the distance of 0.3cm at least with signal processing unit and/or high frequency unit respectively. Preferably,Each transmitting antenna element of transmitting antenna unit and/or transmitting antenna unit and signal processing unit and/orHigh frequency unit is connected by data cable and/or data conductor, wherein leads at this data cable and/or dataLine has the length of 0.3cm at least or has at least length of minimum range. In this transmitting antenna unitCan on space, be arranged in discretely magnetic resonance coil device with signal processing unit and/or high frequency unitIn, and the preferred like this impact that minimizes and/or prevent the transmission operation on transmitting antenna unit.
Advantageously, in each transmitting antenna unit of this transmitting antenna unit and/or transmitting antenna unitPart and signal processing unit and/or high frequency unit are arranged at a distance of the distance of 3cm at least, preferably with signalProcessing unit and/or high frequency unit be at a distance of the distance of 5cm at least, and particularly preferably at a distance of at leastThe distance of 10cm is arranged.
In addition suggestion, each transmitting antenna element and letter of transmitting antenna unit and/or transmitting antenna unitNumber processing unit and/or high frequency unit are the distance cloth of the half length of magnetic resonance coil device apart to the maximumPut. At this, the ultimate range between transmitting antenna unit and signal processing unit and/or high frequency unitDepend on structure and/or the shape of magnetic resonance coil device. But, at transmitting antenna unit and signal placeUltimate range between reason unit and/or high frequency unit is restricted to 1m. But advantageously, send skyEach transmitting antenna element of line unit and/or transmitting antenna unit and signal processing unit and/or high frequency listUnit is at a distance of the about ultimate range of 75cm, and particularly preferably at a distance of the about ultimate range of 50cm.Thus, can keep shape and the compactedness of magnetic resonance coil device, and can realize almost simultaneously withoutThat disturb, wireless transfer of data.
Particularly preferably, high frequency unit is arranged in unlapped at least in part together with transmitting antenna unitIn region, wherein at this signal from signal processing unit by data conductor and/or data cable to high frequencyUnit transmission. Data cable and/or data conductor for example can by conventional data cable form and/or byOptical waveguide, particularly such as being made up of etc. glass fiber material.
In particularly preferred embodiment of the present invention, advise, transmitting antenna unit has at least oneAntennas array, this transmit antenna array has at least two transmitting antennas, and these at least two transmissionsAntenna is disposed in different unlapped regions. Like this, preferably can reduce at least one hasThe covering probability in the region of in transmitting antenna.
In addition suggestion, transmitting antenna unit has at least one transmit antenna array, this transmit antenna arrayThere are at least two transmitting antennas, and these at least two transmitting antennas by bunchy be arranged in total transmissionOn position, thereby preferably improve signal to be sent and/or data by these at least two transmitting antennasSignal strength signal intensity. At this, the total position that sends especially should be understood as follows: these at least two transmissionsAntenna is each other at a distance of minimum range, particularly disposed adjacent one another in magnetic resonance coil device.
In addition, the present invention relates to a kind of magnetic with magnetic resonance device and at least one magnetic resonance coil deviceResonator system.
Particularly preferably, magnetic resonance device has at least one patient's bed and data receiver unit, this numberThere is at least one for wirelessly receiving the data receiver antenna of data and/or signal according to receiving element,Wherein this at least one data receiver antenna is at least partially contained within patient's bed. At this, can be byPatient is positioned at patient's bed like this with together with magnetic resonance coil device for magnetic resonance examination, makesCan be by least one transmitting antenna of transmitting antenna unit and at least one data receiver antenna phase each otherArrange apart from minimum range. In addition, can make thus to transmit from transmitting element to data receiver unit wirelessThe probability that data and/or signal occur to disturb minimizes. Advantageously, minimum range is mainly by patientThe thickness of the bed plate of bed forms, and making can not cloth between transmitting antenna unit and data receiver unitPut the object of other interfering signal transmission. Preferably, at this, at least one by transmitting antenna unit sent outAntennas is arranged in the region that patient's bed of magnetic resonance coil dress is adjacent.
Suggestion magnetic resonance device there is at least one around the wall of the shooting area for taking patient andData receiver unit, this data receiver unit has at least one for wirelessly receiving data and/or letterNumber data receiver antenna, wherein this at least one data receiver antenna is at least partially contained within around batTake the photograph in the wall in region. Due to the little distance between transmitting antenna unit and at least one data receiver antennaFrom, between the data receiver unit of magnetic resonance coil device and magnetic resonance device, can realize also favourableAnd low-loss, wireless especially signal transmission.
Brief description of the drawings
Other advantage of the present invention, feature and details are by embodiment described below and by accompanying drawingProvide.
In accompanying drawing:
Fig. 1 has illustrated the theory structure according to magnetic resonance coil device of the present invention with schematic diagram,
Fig. 2 shows the first embodiment of magnetic resonance coil device,
Fig. 3 shows the second embodiment of magnetic resonance coil device, and
Fig. 4 has illustrated the magnetic resonance system with magnetic resonance device and magnetic resonance coil device with schematic diagram.
Detailed description of the invention
Fig. 1 has schematically shown according to the theory structure of magnetic resonance coil device 10 of the present invention. Magnetic altogetherThe coil device 10 that shakes is made up of TMR's coil device, and described TMR coil device for exampleBy shank magnetic resonance coil device (Fig. 3) and/or body matrix magnetic resonance coil device (Fig. 2) and/Or chest magnetic resonance coil device forms and/or is considered as rational TMR by other by professionalCoil device forms. By magnetic resonance coil device 10 collecting magnetic resonance signals, wherein for this reason by magnetic altogetherThe coil device 10 that shakes is arranged around patient 11 region to be checked 12.
In region to be checked 12 patient 11 in the time of operation magnetic resonance device 13, cause magnetic resonance signal,Wherein at this, the main magnet 14 by magnetic resonance device 13 produces constant and uniform main field 15,This main field causes the magnetization of nuclear spin, these nuclear spins in patient 11 region to be checked 12Be orientated along main field 15. These nuclear spins are by the height that is produced and sent by high frequency coil unit 16Frequently pulse encourages and from its magnetization deflection, wherein nuclear spin produces magnetic resonance signal, this magnetic resonanceSignal is gathered by magnetic resonance coil device 10.
Magnetic resonance coil device 10 has the reception antenna unit 17 for receiving magnetic resonance signals. At this,Reception antenna unit 17 can have at least one reception antenna 18 and/or with multiple reception antennas 18Receiving antenna array. In addition, magnetic resonance coil device 10 comprises signal processing unit 19, this signalProcessing unit has analogy signal processing unit 20 (Signalaufbereitungseinheit), ADC conversionDevice unit 21 and baseband processing unit 22. Interior by gathered simulation magnetic altogether at signal processing unit 19The signal that shakes amplifies and is converted to especially data signal and/or data. In addition, can be by these signalsAnd/or data are in the interior coding of signal processing unit 19 and/or modulation, for by these data signals and/Or data wireless ground sends and/or is transferred to the data receiver unit 23 (Fig. 4) of magnetic resonance device 13.
In addition, magnetic resonance coil device 10 comprises high frequency unit 24 and transmitting antenna unit 25. By numberWord signal and/or data are transferred to high frequency unit 24 from signal processing unit 19, and at high frequency unit24 interior such high frequency ground arrange, and these signals and/or data can be launched from transmitting antenna unit 25.Transmitting antenna unit 25 comprises the transmit antenna array with multiple transmitting antennas 27 in the present embodiment26, for signal and/or data carry high frequency wirelessly, numeral. Therewith alternatively, send skyLine unit 25 also can only comprise unique transmitting antenna 27.
In order to suppress data receiver unit 23 nothings from magnetic resonance coil device 10 to magnetic resonance device 13Less desirable interference when line ground data carry high frequency, numeral and/or signal, by transmitting antenna listUnit 25 is arranged in the unlapped region 28 substantially of magnetic resonance coil device 10. Magnetic resonance coilSubstantially the region that unlapped region 28 is expressed as follows of device 10, this region is in the magnetic resonance measurement phaseBetween there is extremely low covering probability. The health of arranging around patient 11 chest region and/or abdomen areaThe regional area of matrix magnetic resonance coil device has high covering probability, because magnetic resonance coil deviceThis regional area of 10 is used in particular for arm and/or the palm of patient 11 during magnetic resonance measurement.On the contrary, unlapped region 28 is formed by the fringe region 29 of magnetic resonance coil device 10 substantially.For example, transmitting antenna unit 25 can be arranged in the body of arranging around patient 11 shoulder at least in partIn the fringe region 29 of volume matrix magnetic resonance coil device, and/or be arranged in around patient 11 pelvisIn the fringe region 29 of the body matrix magnetic resonance coil device of arranging, referring to Fig. 2. Like this, from magneticThe transmitting antenna unit 25 of resonant coil arrangement 10 is to the data receiver unit 23 of magnetic resonance device 13Data and/or signal transmission path are object dry that is not subject to the transmission of those interfering datas and/or signal transmissionDisturb, this object for example can cause the signal attenuation of signal to be transmitted.
Signal processing unit 19 and reception antenna unit 17 with minimum range each other especially compactly arrange,This point is as known according to conventional MRI coil device 10. On the contrary, transmitting antenna unit 25To be arranged in magnetic resonance coil device 10 with signal processing unit 19 minimum range apart, wherein rightLayout in transmitting antenna unit 25 in magnetic resonance coil device 10 to consider possible covering and fromTransmitting antenna unit 25 to the data receiver unit 23 of magnetic resonance device 13 wirelessly carry high frequency,The signal of numeral and/or data and the interference followed, instead of reception antenna unit 17 and/or signal processingThe layout of unit 19 in magnetic resonance coil device 10.
Fig. 2 shows the magnetic resonance coil device 10 being formed by body matrix magnetic resonance coil device. ThisOutward in this embodiment, high frequency unit 24 same with signal processing unit 19 at a distance of minimum range layout,Make reception antenna unit 17 together with signal processing unit 19 and high frequency unit 24 especially compactlyBe arranged in magnetic resonance coil device 10. On the contrary at this, transmit antenna array 26 and/or transmitting antennaEach transmitting antenna 27 and the high frequency unit 24 of array 26 have distance 30, and this distance is at least 0.3cm.Advantageously, at each transmitting antenna 27 of transmit antenna array 26 and/or transmit antenna array 26And the distance 30 between high frequency unit 24 is at least 3cm, preferably 5cm at least. In addition, at heightFrequently the minimum range 30 between unit 24 and transmit antenna array 26 or each transmitting antenna 27 also canBe greater than 5cm, such as particularly 10cm and/or 20cm, wherein minimum range 30 depends on magnetic resonance lineThe shape of coil apparatus 10 and/or structure.
Each transmitting antenna 27 and high frequency unit of transmitting antenna unit 25 and/or transmit antenna array 2624 distance 30 arrange, this distance 30 be to the maximum magnetic resonance coil device 10 length 31 andPreferably be the half of length 31 to the maximum, this point as shown in Figure 2. Thus, at transmitting antenna listMaximum between each transmitting antenna 27 and the high frequency unit 24 of unit 25 and/or transmit antenna array 26Distance 30 depends on shape and/or the structure of magnetic resonance coil device 10. Like this, at body matrix magneticIn resonant coil arrangement, construct in transmitting antenna unit 25 and/or each of transmit antenna array 26Ultimate range 30 ratios between antennas 27 and high frequency unit 24 are at shank and/or knee magnetic resonance coilThe ultimate range 30 of constructing in device is larger. But, in high frequency unit 24 and transmit antenna array 26Or distance 30 between each transmitting antenna 27 is 1m to the maximum, be advantageously 75cm to the maximum alsoAnd be particularly preferably 50cm to the maximum. Data between high frequency unit 24 and transmit antenna array 26Transmission and/or signal transmission are undertaken by data conductor 33. At this, data conductor 33 can be by routineData cable and/or by optical waveguide (this optical waveguide is made up of glass fiber material at least in part)And/or be considered as rational data transmission device by other by professional and form. At this, data conductor 33Length at least corresponding to the minimum range between transmitting antenna unit 25 and high frequency unit 24.
In the time of operation magnetic resonance coil device 10, the transmitting antenna 27 of transmit antenna array 26 respectively willData-signal identical high frequency, numeral sends to the data receiver unit 23 of magnetic resonance device 13.Like this, can guarantee the data receiver unit 23 with magnetic resonance device 13 at magnetic resonance coil device 10Between redundancy transmission operation and can guarantee thus preferably to receive digital data-signal. ThisOutward, the transmitting antenna 27 of transmit antenna array 26 is disposed in the different of magnetic resonance coil device 10On unlapped region 28. In addition, the transmitting antenna 27 of transmit antenna array 26 also can bunchy groundBe arranged in the unlapped region 28 of magnetic resonance coil device 10, thus preferably improve high frequency, numberThe signal strength signal intensity of the data-signal of word.
Fig. 3 shows according to the another kind of replacement Fig. 2 of magnetic resonance coil device 10 of the present invention and implementsMode, wherein magnetic resonance coil device 10 is made up of shank magnetic resonance coil device at this. In this enforcementIn example, the high frequency unit 24 together with transmitting antenna unit 25 is disposed in magnetic resonance coil device 10Unlapped region 28 in. Transmitting antenna unit 25 is processed single with signal together with high frequency unit 24Unit's 19 distance 30, this is 0.3cm apart from minimum. But preferably, at signal processing unit 19With and transmitting antenna unit 25 together with high frequency unit 24 between distance 30 be at least 3cm, preferablyBe at least 5cm. In addition, at signal processing unit 19 and transmitting antenna unit 25 or high frequency unitMinimum range 30 between 24 also can be greater than 5cm, such as particularly 10cm and/or 20cm.
Maximum distance between signal processing unit 19 and high frequency unit 24 or transmitting antenna unit 25Be the length 31 of magnetic resonance coil device 10 to the maximum and be preferably the half of length 31 to the maximum from 30,This point as shown in Figure 3. At this, between signal processing unit 19 and high frequency unit 24Large distance 30 depends on shape and/or the structure of magnetic resonance coil device 10. But in the present embodiment,Distance 30 between signal processing unit 19 and high frequency unit 24 is 40cm to the maximum, is preferably to the maximum30cm and be particularly preferably 20cm to the maximum. Between signal processing unit 19 and high frequency unit 24Transfer of data and/or signal transmission undertaken by data conductor 33. At this, data conductor 33 canBy routine data cable and/or by optical waveguide, (this optical waveguide is at least in part by glass fiber materialForm) and/or be considered as rational data transmission device by other by professional and form. At this, dataThe length of wire 33 is at least processed single corresponding to transmitting antenna unit 25 or high frequency unit 24 with signalMinimum range between unit 19.
But, transmitting antenna unit 25 is arranged in to magnetic resonance coil device together with high frequency unit 24In at least one unlapped region 28 of 10, be not limited to the embodiment of Fig. 3. Equally, transmitting antenna listUnit 25 and the high frequency unit 24 dividually layout in unlapped region 28 are also not limited to the reality of Fig. 2Execute example, this high frequency unit 24 together with signal processing unit 19 and reception antenna unit 17 with transmissionAntenna element 25 is arranged at a distance of minimum range. In fact, professional can be according to different embodimentInvestigate individually each feature, and be summarised as other and reasonably combine. In addition, at Fig. 2 and Fig. 3In embodiment, on substantially the same parts, feature and functional principle, represent with identical Reference numeral,Wherein the description of Fig. 3 is mainly limited to different from the description of Fig. 2. About identical parts, feature andFunction is referring to the description in the embodiment of Fig. 2.
Fig. 4 shows the magnetic resonance system 34 with magnetic resonance device 13 and magnetic resonance coil device 10.Magnetic resonance device 13 comprises the data receiver unit 23 with multiple data receiver antennas 35. Except this withOutward, data receiver unit 23 can have unit and the element do not described in detail herein, such as analysis listUnit etc. The patient that at least one in these data receiver antennas 35 is disposed in magnetic resonance device 13 crouchesIn couch 36, patient 11 is positioned on this patient's bed for magnetic resonance measurement. By patient's bedPatient 11 is inserted the shooting area 37 of magnetic resonance device 13 by 36, and this shooting area is had main magnet16 of 14 magnet unit 38, Gradient Unit 39 and high frequency coil units around. For in dataAt least one of receiving element 23 is in data receiver antenna 35 and the magnetic resonance of patient's bed 36 interior layoutsBetween the transmitting antenna 27 of the transmit antenna array 26 of coil device 10, obtain as far as possible little distance,Transmitting antenna 27 is arranged in that side adjacent with patient's bed 36 of magnetic resonance coil device 10,Wherein that side adjacent with patient's bed 36 is made up of the supporting surface of magnetic resonance coil device 10. ThisSupport face for example can be at the back side of body matrix magnetic resonance coil device or shank magnetic resonance coil device etc.Upper formation. Patient 11 can be positioned at like this on patient's bed 36 together with magnetic resonance coil device 10,Make the thickness of the bed plate that mainly passes through patient's bed 36 form the transmitting antenna of transmit antenna array 2627 and the data receiver antenna 35 of data receiver unit 23 between distance.
In addition, the data receiver unit 23 of magnetic resonance device 13 has other data receiver antenna 35,These data receiver antennas are arranged around shooting area 37. Data receiver antenna 35 for example can be along batLongitudinal and/or the circumferencial direction of taking the photograph region 37 is integrated in the wall of shooting area 37. At this, encloseDistribute and arrange multiple data receiver antennas 35 around shooting area 37, thereby do not rely on shooting area 37Interior patient's 11 together with magnetic resonance coil device 10 measuring position, at operation magnetic resonance device 13Time for wirelessly carry out transfer of data and/or letter from transmit antenna array 26 to data receiver unit 23Number transmission realizes best data receiver all the time. At this preferably, of transmit antenna array 26Minimum range between a data reception antenna 35 of transmitting antenna 27 and data receiver unit 23Be greatly 20cm and particularly preferably maximum be 15cm.
Claims (13)
1. the magnetic resonance coil device for receiving magnetic resonance signals, have reception antenna unit (17), signal processing unit (19), high frequency unit (24) and for by the magnetic resonance signal of reception and/or data wireless be transferred to the transmitting antenna unit (25) of data receiver unit (23)
It is characterized in that at least one is not by patient and/or region (28) that other object covered, wherein said transmitting antenna unit (25) be disposed in described at least one not by patient and/or region (28) that other object covered
Wherein transmitting antenna unit (25) comprise the transmit antenna array (26) with multiple transmitting antennas (27), and the transmitting antenna (27) of transmit antenna array (26) sends data-signal identical high frequency, numeral respectively to the data receiver unit (23) of magnetic resonance device (13).
2. magnetic resonance coil device according to claim 1,
It is characterized in that, describedly do not formed by fringe region (29) by patient and/or region (28) that other object covered.
3. magnetic resonance coil device according to claim 1,
It is characterized in that, described not by patient and/or region (28) that other object covered at least in part by forming at the supporting surface being supported on during magnetic resonance measurement on patient's bed (36).
4. magnetic resonance coil device according to claim 1,
It is characterized in that, described transmitting antenna unit (25) is embodied as for sending data signal.
5. magnetic resonance coil device according to claim 1,
It is characterized in that, described transmitting antenna unit (25) and described signal processing unit (19) and/or described high frequency unit (24) are arranged at a distance of the distance of 0.3cm (30) at least.
6. magnetic resonance coil device according to claim 1,
It is characterized in that, described transmitting antenna unit (25) and described signal processing unit (19) and/or described high frequency unit (24) are arranged at a distance of the distance of 3cm (30) at least.
7. magnetic resonance coil device according to claim 1,
It is characterized in that, described transmitting antenna unit (25) is arranged with the distance (30) that described signal processing unit (19) and/or described high frequency unit (24) are the half length (31) of magnetic resonance coil device (10) apart to the maximum.
8. magnetic resonance coil device according to claim 1,
It is characterized in that, described in described high frequency unit (24) is arranged at least in part together with described transmitting antenna unit (25) not by patient and/or region (28) that other object covered.
9. magnetic resonance coil device according to claim 1,
It is characterized in that, described transmitting antenna unit (25) has at least one transmit antenna array (26), described transmit antenna array (26) has at least two transmitting antennas (27), and described at least two transmitting antennas (27) are disposed in different not by patient and/or region (28) that other object covered.
10. according to the magnetic resonance coil device described in any one in the claims,
It is characterized in that, described transmitting antenna unit (25) has at least one transmit antenna array (26), described transmit antenna array (26) has at least two transmitting antennas (27), and described at least two transmitting antennas (27) by bunchy be arranged in total transmission on position.
11. 1 kinds of magnetic resonance systems, have magnetic resonance device (13) and at least one is according to the magnetic resonance coil device described in any one in claim 1 to 10 (10).
12. magnetic resonance systems according to claim 11,
It is characterized in that, described magnetic resonance device (13) has at least one patient's bed (36) and data receiver unit (23), described data receiver unit (23) has at least one for wirelessly receiving the data receiver antenna (35) of data and/or signal, and wherein said at least one data receiver antenna (35) is at least partially contained within patient's bed (36).
13. according to the magnetic resonance system described in claim 11 or 12,
It is characterized in that, described magnetic resonance device (13) has at least one wall around the shooting area for taking patient (11) (37) and data receiver unit (23), described data receiver unit (23) has at least one for wirelessly receiving the data receiver antenna (35) of data and/or signal, and wherein said at least one data receiver antenna (35) is at least partially contained within the wall of shooting area (37).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010064096.4 | 2010-12-23 | ||
| DE201010064096 DE102010064096B4 (en) | 2010-12-23 | 2010-12-23 | Magnetic coil device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102540121A CN102540121A (en) | 2012-07-04 |
| CN102540121B true CN102540121B (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110416551.2A Active CN102540121B (en) | 2010-12-23 | 2011-12-14 | Magnetic resonance coil device |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8878536B2 (en) |
| KR (1) | KR101625558B1 (en) |
| CN (1) | CN102540121B (en) |
| DE (1) | DE102010064096B4 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011006497B4 (en) | 2011-03-31 | 2014-07-03 | Siemens Aktiengesellschaft | Local coil system, magnetic resonance system and method for transmitting signals from a local coil |
| DE102012216007A1 (en) * | 2012-09-10 | 2014-03-13 | Siemens Aktiengesellschaft | MR patient table with integrated RF facilities (RF PA) |
| DE102012217526A1 (en) * | 2012-09-27 | 2014-03-27 | Siemens Aktiengesellschaft | Magnetic resonance imaging device e.g. magnetic resonance tomography (MRT) device used for medical diagnosing tissue and organ of human and animal, has local coil that is supplied with electrical power based on the transmitting coil |
| JP6021652B2 (en) * | 2013-01-16 | 2016-11-09 | 東芝メディカルシステムズ株式会社 | Magnetic resonance imaging apparatus and RF coil apparatus |
| DE102013209609A1 (en) * | 2013-05-23 | 2014-11-27 | Siemens Aktiengesellschaft | Magnetic resonance system with full-body transmission array |
| KR102103982B1 (en) * | 2014-02-17 | 2020-04-23 | 삼성전자주식회사 | RF(radio frequency) coil assembly for magnetic resonance imaging and magnetic resonance imaging system |
| JP6687375B2 (en) * | 2015-11-30 | 2020-04-22 | キヤノンメディカルシステムズ株式会社 | RF coil and magnetic resonance imaging apparatus |
| CN109714143B (en) | 2017-10-26 | 2021-12-31 | 通用电气公司 | Synchronization system and method based on wireless or limited cable interconnection and MR system |
| JP7382727B2 (en) * | 2019-03-12 | 2023-11-17 | キヤノンメディカルシステムズ株式会社 | magnetic resonance imaging device |
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| JP5546753B2 (en) * | 2007-08-29 | 2014-07-09 | 株式会社東芝 | Magnetic resonance equipment |
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- 2010-12-23 DE DE201010064096 patent/DE102010064096B4/en active Active
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- 2011-12-14 CN CN201110416551.2A patent/CN102540121B/en active Active
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| US5666055A (en) * | 1995-10-02 | 1997-09-09 | Jones; Randall W. | Surface coil system for a single channel NMR receiver |
| WO2003032002A1 (en) * | 2001-10-09 | 2003-04-17 | Koninklijke Philips Electronics N.V. | Wireless controller and application interface for an mri system |
| WO2006008665A1 (en) * | 2004-07-15 | 2006-01-26 | Koninklijke Philips Electronics, N.V. | Wireless mr receiving coil system |
| CN101903791A (en) * | 2007-12-21 | 2010-12-01 | 皇家飞利浦电子股份有限公司 | Wireless transmit and reception MRI coil |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010064096B4 (en) | 2014-11-27 |
| US20120161773A1 (en) | 2012-06-28 |
| DE102010064096A1 (en) | 2012-06-28 |
| US8878536B2 (en) | 2014-11-04 |
| CN102540121A (en) | 2012-07-04 |
| KR101625558B1 (en) | 2016-06-13 |
| KR20120072342A (en) | 2012-07-03 |
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